Display screen or portion thereof with graphical user interface



The FIGURE is a front view of a tablet device screen or portion thereof with a graphical user interface embodying the present design.

The broken lines in the FIGURE illustrate an environmental tablet device and its display screen or portion thereof with a graphical user interface that forms no part of the claimed design. 

CLAIM The ornamental design for a display screen or portion thereof with graphical user interface, as shown and described. 